In Sioux Falls, two women, legally married in Iowa, received their driver's licenses but with their maiden names and not their married names written.

Amy and Ashley Stabe are petitioning and want that the Department of Public Safety accepts that their married names appear on their driver's licenses.

Why this rejection? A constitutional amendment passed in 2006 banned the recognition of gay marriages and civil unions.

The ACLU sees the license denials as evidence that such laws turn homosexuals into second-class citizens and threaten to drive people from the state. If the courts refuse to accept the name-change petition on the grounds that doing so would endorse a same-sex union, lawsuits might follow."This is an emerging issue for states that have passed these constitutional amendments prohibiting same-sex marriage," said Robert Doody, executive director of the South Dakota ACLU. "They're being used to deny people really basic rights" reports ArgusLeader.